US Patent: 1,445,875
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Grinding machine
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Patentees:
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Charles E. Van Norman (exact or similar names) - Springfield, MA |
Robert W. Ellingham (exact or similar names) - Springfield, MA |
USPTO Classifications: |
451/221, 451/252, 451/254, 451/294, 451/363, 451/365, 451/398, 451/435, 451/64, 451/69, 82/165
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Patent Dates:
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Applied: |
Aug. 29, 1921 |
Granted: |
Feb. 20, 1923 |
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Jeff Joslin Vintage Machinery entry for Van Norman Machine Tool Co.
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Description: |
This lathe-style grinder is intended for use in repairing automotive pistons, wrist pins, valves, and the like. |
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